A marsh is a type of wetland which is distinguished from other wetland varieties by having an assortment of grasses, reeds, and sedges, without large bushes and tall trees. marsh roller: Moorwalze {f} [landwirtschaftliches Gerät] geogr. These values correspond to nearly 30 tons per acre per year and are equal to the highest values that have been achieved in agriculture. Noun ()An inland body of standing water, either natural or man-made, that is smaller than a lake. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Marsh. Omissions? My Stripes (feat. Historically, salt marshes have been lost to construction and development, resulting in a 25-50% decline in salt marshes worldwide. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Our editors will review what you’ve submitted and determine whether to revise the article. marshes on the landscape and their productivity makes them important not only as a part of the natural world but also to humans. Maritime salt marshes are variably subject to tidal action. Consequently, these environments are especially critical for the maintenance of worldwide biological productivity.…, habitats include lakes, ponds, and marshes. Ray Marsh (Frederick Ray Marsh; 1924–2006), US-amerikanischer Moderator; Richard Marsh (Bischof) († 1226), Lordkanzler und Siegelbewahrer von England, Bischof von Durham; Richard Marsh (Pferdetrainer) (1851–1933), britischer Jockey und Rennpferdetrainer; Richard Marsh (Schriftsteller) (eigentlich Richard Bernard Heldman, 1857–1915), britischer Autor; Richard Marsh, Baron Marsh (1928– Ever wonder about the grassy, marshy areas that form where rivers meet the sea? Synonyme: [1] bog, marshland, moor, morass, swamp. Your IP: 89.255.8.35 The combination of water supplied steadily at a low rate over a waterlogged but rich soil creates a perfect environment for marsh grasses. The marsh dwellers of the Iranian marshes have developed a unique culture adapted to life in the wetlands. Marsh, type of wetland ecosystem characterized by poorly drained mineral soils and by plant life dominated by grasses. Marshes are common at the mouths of rivers, especially where extensive deltas have formed. Most such areas are drained someplace along their rim by a river that is impeded at that point sufficiently to dam water at times of high flow and create marshes and swamps. It is named for James Marsh, the chemist who developed it in frustration because existing arsenic testing wasn’t always as sensitive as it needed to be. The world’s two largest rivers, the Amazon and the Congo, fall into this category. The soil tends to be waterlogged and muddy, making it perfect for herbaceous plant life. Articles from Britannica Encyclopedias for elementary and high school students. As nouns the difference between swamp and marsh is that swamp is a piece of wet, spongy land; low ground saturated with water; soft, wet ground which may have a growth of certain kinds of trees, but is unfit for agricultural or pastoral purposes while marsh is an area of low, wet land, often with tall grass. The number of plant species in marshes is few compared with those that grow on well-watered but not waterlogged land. The Florida Everglades constitutes a unique marsh–swamp combination growing on a limestone base. This wetland type is dominated by grasses rather than trees. Mehr von Marsh. Salt marshes, which are extensive along the east coast of the United States and are also common in the Arctic, northern Europe, Australia, and New Zealand, are formed by seawater flooding and draining, which exposes flat areas of intertidal land. Let us know if you have suggestions to improve this article (requires login). If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. A freshwater marsh, dominated by saw grass and dotted by palms and cypresses, in the Everglades, southern Florida, U.S. Salt marsh at Toms Cove, Chincoteague National Wildlife Refuge (within Assateague Island National Seashore), Virginia, U.S. …environments occurs in swamps and marshes and tropical rainforests; the lowest occurs in deserts. In aquatic environments, the highest net productivity occurs in estuaries, algal beds, and reefs. This article was most recently revised and updated by, U.S Environmental Protection Agency - Marshes, marsh - Children's Encyclopedia (Ages 8-11), marsh - Student Encyclopedia (Ages 11 and up). • Marsh Arabs: Marsch-Araber {pl} orn. Former investment banker David Marsh is critical of the European Central Bank and the U.S. Federal Reserve for having transformed themselves into political instruments. The number of plant species in marshes is few compared with those that grow on well-watered but not waterlogged land. Marsh, type of wetland ecosystem characterized by poorly drained mineral soils and by plant life dominated by grasses. Some marshes are fed by groundwater. What does marsh mean? Scientists working to install the instrument may find themselves waist-deep in the soft marsh sediments! Because salt marshes are frequently submerged by the tides and contain a lot of … Because the delta is deposited by sediment settling from the river water, the land that is built will be poorly drained at its driest and will often be underwater. The river brings a steady supply of water. 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